crafting seems to be completely busted...

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the result of my crafting abilities has been highly unpredictable for the past week or two; if this is intentional: WTF!?

Date & Time: Monday, October 23rd 2017
Frequency: Every time I craft
World name: brunhyldr
Character name: Arik Arulas
Retainer name: N/A
NPC name: N/A
Monster name: N/A
Class/Level: leatherworker lv56
Party or solo: solo
In-game time: 4 months
Area and coordinates: foundation, 8.2, 10.9
Housing: N/A
Steps:
1. start crafting
2. use basic synthesis, progress increases
3. work on quality
4. simple math
5. use basic synthesis, progress falls short
6. synthesis fails
7. screaming
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■ PS4 Specs

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- Model Number: CUH-1115A

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